Derailor help

So I'm looking at upgrading to a nicer rear derailor and I wanna know if I will see a huge difference between sram's x.9 and x.0 series. I do a lot of XC so I need something that can stand up too a beating and hold up too mud and rain. But is the x.0 really worth the extra 100 bucks? On amazon I can pick up a x.9 for about $80 and a x.0 for like $190. Whats your guy's opinions?

X.9

X.0

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Permalink Reply by Gecko on October 5, 2009 at 4:37am
Stay away from the XO if you're looking for something that can withstand a beating. Aluminum and steel will bend, but carbon shatters. Unless you're a weight weenie or a compulsive bike cleaner, you won't mind the extra few (literally, like 7) grams. Spend the extra 100 bucks on a nice cassette or front derailleur.
Permalink Reply by Anne on October 5, 2009 at 8:17am
Carbon doesn't "shatter", and certainly not in any derailleur on the market. That being said, anything can and will break if beaten, but to suggest to stay away from XO for the negligible amount of carbon used in it's construction is not accurate. RD failure in XC is usually at the B knuckle and/or dropout; having a replaceable hanger is a wonderful thing.

No, there isn't a huge difference between XO and X9 except grams; if concerned about balancing durability with budget you can get the same level of features as XO as far down the line as X5. For X0 last year they added the option of anodised colors, so perhaps that would be a good reason to choose the X0 over the X9 if any?



El Gecko said:
Stay away from the XO if you're looking for something that can withstand a beating. Aluminum and steel will bend, but carbon shatters. Unless you're a weight weenie or a compulsive bike cleaner, you won't mind the extra few (literally, like 7) grams. Spend the extra 100 bucks on a nice cassette or front derailleur.
Permalink Reply by Gecko on October 5, 2009 at 8:42am
X0 and X9 are identical from a performance standpoint. Something tells me this wouldn't have happened with the X9 though.

Permalink Reply by Anne on October 5, 2009 at 9:14am
Probably. the X9 is a composite cage too, the classic complaint about SRAM using "plastic" in the derailleur designs. X5 or X7 is an alloy pulley cage, would twist/bend yes but probably not bendable-backable (wow, is that bad english?).

El Gecko said:
X0 and X9 are identical from a performance standpoint. Something tells me this wouldn't have happened with the X9 though.

Permalink Reply by Tank-Ridin' Ryan on October 5, 2009 at 9:46am
If that cage is in fact carbon, submit that picture to Busted Carbon. If it's not, it might be featured on No Carbon Wednesday.

BEWARE: The site will probably make you very sad.

El Gecko said:
X0 and X9 are identical from a performance standpoint. Something tells me this wouldn't have happened with the X9 though.

Permalink Reply by Matt M. 18.5KM on October 5, 2009 at 5:43pm
Busted Carbon makes me happy I currently own ZERO carbon components. I sold it all. Getting a WORKOUT is more important to me instead of zipping around on some featherweight sissy shit.
Permalink Reply by Bailey Gene Newbrey on October 5, 2009 at 9:12pm
If you're looking towards carbon fiber & can't spell derailleur (or the popular English "derailer") then carbon just ain't for you. I ain't looking to be a jerk; merely being realistic.
Permalink Reply by Anne on October 6, 2009 at 3:26am
LOLLOLOLOL
is that the eleventh collegiate edition or the third international edition?

Prowd Sissy Featherweight Sht Rider

Phillip Miecznikowski said:
GRAMMAR NAZI!!!

Permalink Reply by Bailey Gene Newbrey on October 6, 2009 at 5:29am
Hitler and Nazis sure do come up a lot on the Chainlink.

Anne said:
LOLLOLOLOL
is that the eleventh collegiate edition or the third international edition?

Prowd Sissy Featherweight Sht Rider

Phillip Miecznikowski said:
GRAMMAR NAZI!!!

Permalink Reply by joe stein on October 6, 2009 at 6:21am
"busted carbon" made my rainy day lunch a little lighter. thx.

Tank-Ridin' Ryan said:
If that cage is in fact carbon, submit that picture to Busted Carbon. If it's not, it might be featured on No Carbon Wednesday.

BEWARE: The site will probably make you very sad.

El Gecko said:
X0 and X9 are identical from a performance standpoint. Something tells me this wouldn't have happened with the X9 though.

Permalink Reply by Sean W. on October 6, 2009 at 6:35am
Anne said:
Probably. the X9 is a composite cage too, the classic complaint about SRAM using "plastic" in the derailleur designs. X5 or X7 is an alloy pulley cage, would twist/bend yes but probably not bendable-backable (wow, is that bad english?).


"Bendable-backable" could also be termed as "yielded" or "plastically deformed" if you want to get all engineer-y :) The difference here is between ductile and brittle failure. But they'd both still be considered failures, just one of them would be a failure in two parts.
Permalink Reply by nik was here on October 6, 2009 at 3:01pm
they both work great... the question now is, how good do you want it to look?

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